Eyeglass-mounting.



C, A. HFFMAN.

BYEGLASS MOUNTING.

APPLICATION FILED IIIAII4 1s, 1905.

960,934n y Patented June 7,1910.

uNiTED sTATEs PATENT OFFICE.

cHenLEs A. Herri/Lm? or MINNEAPoLrs MINNESOTA.

nYEeLAss-rioun'nrre.

To.: wil rwhom "it mag/concern.'

Be known'that I, CHARLES HOFFMAN, of., Minneapolis, Hennepin county', Minnesota, have invented certain new and useful Improvements 1n Eyeglass-Mountlngs, of-

-whichthe following is a specification.

The objectofA my invention is to provide "an eyeglass mountingin which the use of screws, wedges or similar means for securing the parts together isentir'ely avoided.

A further object isto provide a mounting that can be easily` and quickly adjusted 'to the contour of the nose. e

The invention consists -in features hereinafter particularly described and then sought to be clearly defined by the claims.'

'In the accompanying drawings `formingpart of this specification, Figure 1 iS 'a front view of an eyeglass mounting embodying my invention.. Fig. 2 is a topY vlew of the same. Fig. 3 is a view looking toward one of the vlens from a section line through the bridge.

Fig. 4 is a plan view ofthe mounting illus-- ltrated in ,Fig. l just after it has been cut" out and before being bent tov form the'mountA ing. Fig.'5lis 4a similar view of a modified form, the lens clamps' and the nose guards being reversed in position.1 Fig. 6 is a secby said loops and consistA of pomts 6 tional view through the lens showing the manner o f securing the clamp thereon. l' In the'drawing, 2 represents a bridge pro- 4vided with loops 3 in aplanesubstantially :1t-right angles to the plane ofthelensand ,having their ends inwardly and backwardly turned and terminating in two-'piece nose `guards 4 and 5. The loops 3 -actas spring supports for the 'guards tovhold them with a "yielding pressure on the nose, and are -ieXed by pressure on the nger pieces in placing. the mounting on the nose or removing 1t. Laterally extending lens clampsare carried which i bear on the edges of thev lens andears 7 that straddle the lens edges and have holes 8 through .which a fastening means is inserted. v l

The lenses represented by numeral 9 are provided with. the usual perforations, and eyelets 10 passl through these perforatlons and through the holes in the ears 7, and then have their ends expanded to lock the lens and clamps firmly together avoiding t-he use of screws 'or rivets. y l The bridge, nose guards and clamps, as

shown in Fig. al, are all stamped out from a single piece of metal, and the bridge is bent Specifica-tion of Lettersratet. 'Application ined March is, i905; serial 1510..::5097391` to allow the mounting to .be-'fitted to the con- 4tour of the nose and the bridge torest onv 'the nose or followits. outline inA much the same-manner asia spectacle bridge.-

'The bridge 'and its connections will be made of liexible sheet metal, which will permit of its being: bent andad-justed in any desired position 'to fit the nosel of the per-l son for `whom'the mounting is magie. The

into a plane at an'angle offromtwenty-live to forty-tive degrees 4to the plane ofthe lens Patented June '7, .1910; e

the fingers to flex theloops- 3 in placing .the

mounting onthe 'noseor removing 1t. The eyelets Aused for .securing theclamps to the lensare flattened out or expanded at 4- eaeh end inthe vusual way and form a more secure fasteningmeansthan rivets orscrews, as their fianged ends have a Wider and more substantial grip or hold on the clamps than the heads of rivets would have at that place.

Theseeyelets, hollow rivets or bushings'are of comparatively thin material, and are a apted to be spread out or fianged at each end bythe pressure of a pair of pliers, or other suitable tool, thereon to lock the'clamp and lens together without, danger ofbreaking the lens and Without the use of the insecure screw usuallyemployed. I- have found that but little pressure will be required on the ends of the bushing to force them out laterally upon the clamp, and these flanged-portions lof the ends may be easily squeezed together whenever it is desired to detach the clamp 'from' t-he lens. A rivet has to be headed,vand there-is always great danger of breaking the lens, and it is a difficultand delicate operation .to'rem'o've the j rivet and, detach the clamp from the lens.

In Fig. 3 I have illustrated the nose guards provided with gripping surfaces 11 made of rubber, cork, gutta-percha, or-any suitable material, and-secured tothe lguards bv little eyelets 12 thathavea better grip on 4the softer bearing surfaces than rivetsor wouldv have at that' point. -These eyelets, hollow rivets or bushings arc also made of thin material capable of bemg easily spread out or flanged to engage the surfaces of the guards, and said ends will have a much broader bearing surface on the vguards than rivets would have; and consequently there is -much less. danger of their Y* pulling out through the soft cork of which the guard is usually made.

At the opposite endof the lensafrom the point where'the mounting clamp is secured thereto I provide an eyelet 12 through which the cordis passed to the person. This eyelet has a smooth interior and end surfaces, and will not cut or fray the cord at the point where it passes and extend forwardly when the mounting is bent into proper form foruse to allow them to be conveniently gripped by the ngersin placing the .glasses on the nose or removing them.

I claim as my invention:

1. The eye-glass mounting eomprisinga clamp for each lens, the metal of which the at secures the eyeglasses' vaeoai clamps are formed having a portion thereof` extended to bear 0n the edges olllonses and another portionr bent substantially at right angles to the plane of the lenses to form n spring loop next to each lens with a part thereof bent to form' a. nose-guard and nn-- other portion to' form a bridge connectingr the two lens clamps, substantially as described.

2. In a rimless4 mounting for eyeglasses and spectacles, the combination with the.

lens-strap having a hole: therethrough, of a hollow or tubular-rivet kadapted to extend through said hole to secure the strap to the' lens, and having eachfend enlarged, the material of the rivet where it contacts with the lens having therewith.

The combination of a lens, a strap and a hollowrivet having an expanded end for holding said strap to said. lens andvwhereby v said 'end may .be easily vcontracted for r e\ movall of said rivet from the len's, said rivet lduring its attachment-retaining its normal size throughout its surface contact with said lens,jits expanded part contacting only with vsaid strap whereby breakage of said vlens is avoided during the aemblage of the parts.

a non-compressing engagement In witness whereof, I have vhereunto set f my hand this 7th day ozE March 1905.

l/ Vtnessesz RICHARD PAUL, .C. G. IIeNsoN.

CHARLES A. HOFFMAN, 

